If you do not have the physical manual, follow these standard operating procedures for the QM4 system: 1. Connection Steps
The QM4’s bass boost is centered at 45Hz with a Q factor of 2. If you set the boost above 6dB, the amplifier will clip even at low gain. The manual recommends using the LPF crossover at 80Hz before adding any bass boost.
Switch on the power. Slowly raise the Master Volume to roughly 50%, then bring up individual channel volumes to set your stage mix. 3. Adjusting Equalization audio choice qm4 manual link
: Raise your main Master Level knob to roughly 50-60%. Bring up individual channel gain knobs one by one until the target source matches the surrounding room dynamics.
Start with the Master Level at zero. Adjust the individual channel Gain and Tone to your preference, then slowly raise the Master Level. If you do not have the physical manual,
Shapes the overall output tone to match the acoustics of the venue. Built-in Powered Head
Built-in safeguards against short circuits, thermal overload, and turn-on/turn-off transients to shield connected loudspeakers from voltage spikes. Installation and Rack Setup Guidelines The manual recommends using the LPF crossover at
: Provides digital versions for similar era equipment and often lists the Q M4 Soundbar manual (note: ensure you are searching for the "Audio Choice" PA system and not the Q Acoustics M4 soundbar).
Designed to work instantly with existing TV remotes or the included remote. 3. Quick Start Guide: Setting Up Your M4
: Use the individual channel tone knobs to shape the sound of each source, then use the 3-band Master EQ to tune the overall output for the room.